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Pharmacological inhibition of γ-secretase activity
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For YO-01027, pilot experiments were performed with different drug concentrations ranging from 0.1 nM to 150 μM to determine the effective linear range and maximal inhibition dose for YO-01027. YO-01027 were added at the required concentrations to the S2 cell medium upon induction of Notch or APPL expression, 6 hrs before protein harvesting. For each sample, YO-01027 was also included at the corresponding concentration in the lysis buffer for protein extraction and immunoblot analysis.
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References:
[1]. Casper Groth, W. Gregory Alvord, Octavio A. Quinones, and Mark E. Fortini. Pharmacological analysis of drosphila melanogaster γ-secretase with respect to differential proteolysis of Notch and APP. Mol. Pharmacol. 2010, 77(4), 567-574.
[2]. Harrison H, Farnie G, Howell SJ, Rock RE, Stylianou S, Brennan KR, Bundred NJ, Clarke RB. Regulation of breast cancer stem cell activity by signaling through the Notch4 receptor. Cancer Res. 2010 Jan 15;70(2):709-18.
[3]. van Es JH, van Gijn ME, Riccio O, van den Born M, Vooijs M, Begthel H, Cozijnsen M, Robine S, Winton DJ, Radtke F, Clevers H. Notch/gamma-secretase inhibition turns proliferative cells in intestinal crypts and adenomas into goblet cells. Nature. 2005 Jun 16;435(7044):959-63.
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